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Rare Redevelopment Opportunity in Prime Ontario Location - 10,035 SF Building on 0.68 Acres sale with Approved Fourplex Conversion Plan Near Ontario Airport A unique investment opportunity awaits with this expansive 10,035 square foot property situated on a generous 0.68 acre lot in the heart of Ontario, California. Originally built as a private educational facility, this structure is currently undergoing a strategic redevelopment to transform it into a fully approved fourplex residential complex which is perfectly suited for multi-generational living, institutional leasing, or income generating rentals. The city-approved architectural plans reimagine the existing footprint into four fully independent residential units, each with its own private entry, kitchen, and laundry. Interior demolition has already been completed, and the project is ready for final permitting and construction. Unit A: 481 SF with 1 bed, 1 bath, kitchen, living room, laundry Unit B: 7,516 SF with 8 beds, 7 baths + powder room, dual kitchens, large dining, multiple living spaces, 3 master suites Unit C: 865 SF with 1 bed, 2 baths, office, kitchen, living room Unit D: 1,090 SF with 1 bed, 2 baths, office, kitchen, living room Each unit will have separate electrical and water meters. The property also features a 240 SF detached garage, redesigned landscaping, and ample yard space with future expansion potential. Prime location just minutes from Ontario International Airport, major freeways (I-10, I-15, 60), and key business corridors. This property offers incredible flexibility for residential rental, group housing, assisted living, foster care, or community services. Zoned for high utility and long-term upside, this project is ideal for developers, institutional investors, or owner-operators seeking scalable residential or care-facility potential in a thriving Inland Empire location.
| DAYS ON MARKET | 104 | LAST UPDATED | 6/23/2025 |
|---|---|---|---|
| YEAR BUILT | 1969 | COMMUNITY | 686 - Ontario |
| COUNTY | San Bernardino | STATUS | Active |
| PROPERTY TYPE(S) | Single Family |
| ADDITIONAL DETAILS | |
| AIR | None |
|---|---|
| AREA | 686 - Ontario |
| CONSTRUCTION | Stucco |
| LOT | 0.6826 acre(s) |
| POOL DESCRIPTION | None |
| SEWER | Public Sewer |
| STORIES | 1 |
| UTILITIES | Cable Available, Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected |
| VIEW DESCRIPTION | None |
| WATER | Public |
TOTAL MONTHLY PAYMENT
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Based on information from California Regional Multiple Listing Service, Inc. as of 9/19/25 9:33 PM PDT and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information
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